Max Maths, Year 6, Learn together, Review of perimeter and area (2)

In a practical mathematics lesson for Year 6, students are tasked with calculating the perimeter of an L-shaped building. To tackle this challenge, they begin by labeling each side of the building's diagram with letters to keep track of the different lengths and widths. With some sides clearly marked with measurements, such as a 100-meter length and a 25-meter width, the task is to determine the lengths of the unmarked sides, labeled C and F, to complete the perimeter calculation.

Students learn to deduce the missing lengths using the given dimensions: side C is found by adding side A (25 m) to side E (20 m), resulting in 45 meters, while side F is determined by subtracting side D (30 m) from side B (100 m), giving a length of 70 meters. With all sides now measured, they combine the lengths of sides A, B, C, D, E, and F, totalling 290 meters. Through this process, they discover that the perimeter of the L-shaped building is 290 meters. The lesson also prompts students to consider how they might find the perimeter when not all side lengths are known, directing them to workbook pages for further practice and exploration.